401K retirement programs rely on the employee making contribution to their own retirement fund. Employers often match some or all of the employees contribution. The other role that employers play is in determining the investment options available to the employee.
The level of retirement income that you can enjoy from a 401K program depends heavily on when you begin to make
contributions. For example, a dollar invested at the age of 25 has 40 years in which to grow if you plan to retire at age 65, while a dollar
invested at age 45 has only 20 years in which to grow. Assuming an initial amount of $1,000 and annual return of 5%, that would be the difference between
having $7,040 or $2,653 at retirement. That's the power of compounding.